12012132133 has 4 divisors (see below), whose sum is σ = 12047776780. Its totient is φ = 11976487488.

The previous prime is 12012132131. The next prime is 12012132161. The reversal of 12012132133 is 33123121021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3963709764 + 8048422369 = 62958^2 + 89713^2 .

It is a cyclic number.

It is not a de Polignac number, because 12012132133 - 2¹ = 12012132131 is a prime.

It is a super-2 number, since 2×12012132133² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12012132133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012132131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17821818 + ... + 17822491.

It is an arithmetic number, because the mean of its divisors is an integer number (3011944195).

Almost surely, 2^12012132133 is an apocalyptic number.

It is an amenable number.

12012132133 is a deficient number, since it is larger than the sum of its proper divisors (35644647).

12012132133 is an equidigital number, since it uses as much as digits as its factorization.

12012132133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35644646.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12012132133 its reverse (33123121021), we get a palindrome (45135253154).

The spelling of 12012132133 in words is "twelve billion, twelve million, one hundred thirty-two thousand, one hundred thirty-three".